package com.lry.basic.jvm;

/**
 * @author:刘仁有
 * @desc:
 * @email:953506233@qq.com
 * @data:2019/12/23
 */
public class Test1 {
    public static void main(String[] args) {
        Integer a = 1;
        Integer b = 2;
        Integer c = 3;
        Integer d = 3;
        Integer e = 321;
        Integer f = 321;
        Long g = 3L;
        System.out.println(c == d);//true
        System.out.println(e == f);//false
        System.out.println(c == (a + b));//true
        System.out.println(c.equals(a + b));//true

        System.out.println(g == (a + b));//true？  这咋回事
        System.out.println(g.equals(a + b));//false?  这咋回事
    }
}
